baber/WOPTO huggingface dataset:
Patent GB-1528054-A (GB)
Title: Apparatus for control the ratio of air to fuel of air-fuel mixture applied to an internal combustion engine
IPC: F02D41/16
Filed: 1975-11-25
Abstract: 1528054 Automatic control of IC engine NISSAN MOTOR CO Ltd 25 Nov 1975 [29 Nov 1974] 48346/75 Heading G3R [Also in Division F1] In an I.C. engine having a carburetter with an air and fuel mixing chamber, the air/fuel ratio supplied to the engine is controlled by admitting additional air to the mixing chamber in response to the composition of the exhaust gas, and also by admitting additional air and/or fuel directly to the induction passage downstream of a throttle valve in response to the said composition or to another engine parameter. There are two air and fuel mixing chambers, main 22 and auxiliary 32 and additional air is bled to both via respective on/off electromagnetic valves 41, 43 energized by width modulated pulses whose frequency may be related to engine speed, from a PI controller 100 in response to exhaust sensor 60. The on/off action is smoothed by response times and restriction of the air passages so that the air/fuel ratio changes smoothly. As shown, additional air is admitted at 50, controlled by a similar valve 51 from a second controller 200 which may be similar to 100 but preferably it instead has a differentiating characteristic. In an alternative embodiment Fig. 8 (not shown) this additional air is taken from above the Venturi 13, i.e. the Venturi and throttle are by-passed, and also additional fuel is supplied below the throttle. Both the by-pass and the additional fuel are controlled by respective on/off electromagnetic valves, energized from a controller responsive to throttle position, engine speed and engine temperature which is switched in when the exhaust gas sensor signal has not changed for a prescribed time. The additional air to the mixing chambers is controlled as in the first embodiment.
Patent GB-1443337-A (GB)
Title: Carpet products
IPC: B32B5/08
Filed: 1973-10-15
Abstract: 1443337 Laminates E I DU PONT DE NEMOURS & CO 15 Oct 1973 [16 Oct 1972] 48549/73 Heading B5N [Also in Division D1] A primary carpet backing having a thickness of less than 2 mm. measured at a pressure of 240 g./cm.<SP>2</SP> comprises a 2-6 oz./yd.<SP>2</SP> (68-203 g./m.<SP>2</SP>) woven or bonded non-woven sheet of continuous filaments or ribbons of polypropylene having needled thereto a 1-6 oz./yd.<SP>2</SP> (34-203 g./m.<SP>2</SP>) layer of staple fibre blend containing 0À5-30% by weight of conductive, carbon-containing synthetic organic fibre having a specific resistance of less than 1 x 10<SP>4</SP> ohm. cm. the remaining fibres of the blend being fibres of higher resistivity. The conductive fibres may be 6-nylon containing 16-28% by weight of conductive carbon, sheath/core fibres having a polyethylene core containing 20-35% by weight of conductive carbon and a sheath of polyamide, or polypropylene fibres containing 16-33% by weight of conductive carbon. The other fibres in the blend of higher resistivity which may be dyeable, may be of polyesters, polyamides, polyethers, polyurethanes, acrylic or modacrylic polymers. The primary backing may be used in the production of tufted pile carpets having a cut pile, the upper surface of the backing being the side upon which the staple fibre blend is deposited prior to needling. A layer of latex may be applied to the tufted carpet to hold the tufts in place and a secondary backing glued or otherwise bonded to the bottom face. The pile may be of 6-6 nylon optionally in admixture with conductive stainless steel fibres or sheath/core conductive fibres consisting of a 6-6 nylon sheath and polyethylene core containing conductive carbon black.
Patent GB-1468053-A (GB)
Title: Condensation products of beta-haloalkyl phosphates and dialkyl phosphonates
IPC: B01J31/00
Filed: 1974-11-11
Abstract: 1468053 Phosphate-phosphonate condensates STAUFFER CHEMICAL CO 11 Nov 1974 [12 Nov 1973] 48687/74 Heading C2P [Also in Division C3] The invention comprises products obtained by condensing (a) at least one phosphate having at least one C 2-4  #-haloalkyl group, with (b) at least one phosphonate R<SP>1</SP>P(O)(OR) 2  where R is C 1-4  alkyl, and R<SP>1</SP> is C 1-20  alkyl, C 2-20  alkenyl, or phenyl optionally bearing one or more halo and/or C 1-4  alkyl substituents; the condensation being effected at 110-250 C. in the presence of a "nucleophilic catalyst". The products when (a) is a tris-(#-haloalkyl) phosphate and the molar ratio (a) : (b) is 1 : 2 and 1 : 3 have the respective structures (1) and (2) infra. Other obtainable products have the structures (3)-(9) where x is an integer; Q is C 2-4  alkylene; R and R<SP>1</SP> are as above; and R<SP>11</SP> and R<SP>111</SP> are esterifying groups. When the products contain cyclic groups of structure these may be opened by reaction with Y(OH) n  where n is an integer and Y is H or an organic radical which may contain further functional groups. Any acidic groups in the products may be neutralized by reaction with an epoxide or orthoester. The invention condensates are used as flameretardants for polymers.
Patent GB-487663-A (GB)
Abstract: 487,663. Gear - wheel pumps. HERBERT, Ltd., A., LLOYD, A. H., and TIPPLE, E. W. Jan. 26, 1938, No. 2470. [Class 110 (ii)] A tank 15 is arranged between the suction port of a gear-wheel pump 11, and the reservoir 16 for priming purposes. The capacity of the tank 15 is greater than that of the pipe 17. In the case of a suds pump for a lathe, the upper gear may be driven off the lathe spindle by a belt 13.
Patent GB-1243004-A (GB)
Title: Sulphur-containing epoxides and processes for their production
Inventor: OSWALD RICHARD ALAN
IPC: C07D303/34
Filed: 1967-10-26
Abstract: 1,243,004. Treating textiles. CIBA (A.R.L.) Ltd. 15 Oct., 1968 [26 Oct., 1967], No. 48798/ 67. Heading D1P. [Also in Divisions C2 and C3] Cellulosic textiles are treated, to impart mechanical finishing and creaseproofing, with sulphur-containing epoxides containing the grouping some of which are novel, which may be obtained by [a] reacting monothiols of the formula: wherein R is a divalent organic radical and -OR' is a hydroxyl or ester group X-COO- or X-SO 3 -, where X is an alkyl, cycloalkyl, aryl or aralkyl residue, [b] hydrolysing the ester group OR', if present, and [c] dehydrochlorinating the 1, 2-chlorohydrins so produced.
Patent GB-1499044-A (GB)
Title: Electrical generators
IPC: H02J9/06
Filed: 1976-08-31
Abstract: 1499044 Supplying loads from generators ENGINE APPLICATIONS Ltd 31 Aug 1976 [27 Nov 1975] 48852/75 Heading H2H An automatic control system wherein a generator produces electrical energy when a load is connected to the generator comprises an oscillator, the output of which is inductively coupled to the output leads of the generator such that when a load is connected to the output leads the magnitude of the oscillator output signal is varied, a detector for detecting the oscillator output and means for sensing the level of the detector output and arranged to actuate switching means which cause the generator to produce electrical energy when the detector output changes by a given amount. The output of an oscillator 20 which includes a transistor 21 energized from a battery output terminals 10, 11 by way of an operational amplifier 12, is inductively coupled to one or more output leads 32, 33 of an electric generator by way a transformer 30 and to a diode detector 40. With no load connected to the generator output leads 32, 33, the output frequency of the oscillator 20, preset by a variable resistor 27, has a value such that a relay 60 is un-energized. When a load is connected to the leads 32, 33 a high frequency current will flow in the circuit comprising the load, leads 32, 33 and a capacitor 35. This will cause a decrease in the amplitude of the output oscillations of the oscillator 20 which decrease is detected by the diode detector 40 with the result that the output of an operational amplifier 44 drops for a short time, say one second, determined by the rate of charge of a capacitor 45. The drop in potential at the output of amplifier 44 causes conduction of a transistor 54 so that a capacitor 55 is rapidly charged to render transistors 58, 59 conductive thereby to energize a relay 60 which causes starting of a prime mover driving the generator which applies electrical energy to the load connected to the leads 32, 33. When the output of the amplifier 44 returns to its original value after the predetermined delay, the transsistor 54 again becomes non-conductive, conduction of transistors 58, 59 being maintained by the discharge of the capacitor 55 whereby energization of the relay 60 is maintained to allow the generator to produce an output on leads 32, 33. Such an A.C. output causes a square wave to appear at the output of the amplifier 44 whereby transistor 54 is alternately switched on and off to maintain the charge on the capacitor 55 and the relay 60 energized.
Patent GB-1454753-A (GB)
Title: Releasable catch
IPC: B60P3/08
Filed: 1973-10-20
Abstract: 1454753 Latches ANTHONY CARRIMORE (SALES) Ltd 21 Oct 1974 [20 Oct 1973] 48969/73 Heading E2A  The raisable deck 4 of a car-transporter is pivoted to a runner 1 which runs between guides 3, 4 and which may be drawn up by cable 12 past pawls so as to rest on their top surfaces. The deck is lowered by raising it further so that a wedge-shaped spacer 6 opens the wedges, and then, as the assembly is lowered, slides up a rod 5 projecting from the runner so that both pass down between the pawls as shown in Fig. 4.
Patent GB-1269307-A (GB)
Title: Improvements in or relating to frying apparatus
Inventor: HOLEN KOLBEIN
IPC: A47J37/04
Filed: 1970-10-15
Abstract: 1,269,307. Frying apparatus. K. HOLEN. Oct. 15, 1970, No. 49047/70. Heading A4D. Frying apparatus comprises two endless frying bands 1, 2 disposed one above the other and passing over rollers, the bands consisting of an impervious glass fibre webbing coated on both sides with P. T. F. E., the lower surface of each band being in direct contact with a heated base 7 having a plane central portion and upwardly curving edge portions 8 and 9, the foodstuffs being turned at the transition from one band to the band lying therebeneath. The foodstuff 13 is transported from left to right along band 1. As it passes over roller 4 it is turned and guided on to band 2 by baffle 14. When it reaches roller 5 it is guided by baffle 15 on to an endless band 16 running on rollers 17, 18. This band 16 is made of a porous material such as a metal web. During the travel on the band 16 the foodstuff is cooled, for example by means of jets of cold air. Superfluous fat can run from the foodstuff down into a tray 20. The heated base 7 comprises an electric heating element 10 which is insulated at 11. The bands 1, 2 are maintained in position by beads 12 on the curved portions 8, 9.
Patent GB-969986-A (GB)
Title: Magnetic recording system
IPC: G11B20/14
Filed: 1962-12-31
Abstract: 969,986. Digital data storage. SPERRY RAND CORPORATION. Dec. 31,1962 [Jan. 11, 1962], No. 49103/62. Heading G4C. In an arrangement for magnetically recording digital data in which a " 0" is represented by a pulse of one polarity and a "1" by a pulse of the opposite polarity, means are provided for recording an additional pulse between two consecutive data pulses whenever the two pulses are of the same polarity, the additional pulse being of the opposite polarity. Errors due to a shift in the magnetic reference level which might occur if a series of same-polarity pulses were recorded are thus obviated. Data signals to be recorded on a magnetic tape or drum (not shown) are supplied at a terminal 16 to a circuit 14 which also receives clock pulses B, Fig. 2, to produce a train C, Fig. 2, in which a "1" is represented by a negative pulse and a " 0" by the absence of a pulse. Waveform C is applied to a circuit including flipflops 18, 28 and negative AND gates 20-26, their circuit being supplied with clock trains A, B (which are 180 degrees out of phase with each other) delayed by half a bit time at delays 21, 23, the flip-flop 28 producing an output waveform E, Fig. 2, which is supplied to a shorted delay line 30 whose output waveform F, Fig. 2, consists of a negative pulse for each "1", a positive pulse for each "0" and an additional pulse of opposite polarity between each two consecutive pulses of the same polarity. Waveform F is supplied in direct and inverted form via respective diodes 36, 40 to a recording head 44, the two sides of the coil of which receive respective recording waveforms G. H, Fig. 2, in which the additional, non-significant, pulses are shown as N. Data can be erased from the magnetic surface by moving switches 46, 48 to the left, thereby rendering effective an "erase" oscillator 52. Data can be read out by moving switches 46, 48 to the right to pass the signals read to a gating circuit 58 which is effective to remove the additional non-significant pulses recorded on the surface.
Patent GB-1401756-A (GB)
Title: Covers and frames for access pits and manholes
IPC: E02D29/14
Filed: 1971-10-22
Abstract: 1401756 Manhole covers and frames E B HERBERT 23 Oct 1972 [22 Oct 1971] 49160/ 71 Heading E1G A frame 7 for a rectangular manhole or access cover 1, or for a series of such covers, Fig. 3 (not shown), has in two opposed walls 6 recesses 5 with sloping sides 4 receiving wedging end seating lugs 3 on the cover(s), each cover being supported solely by a single wedging lug 3 projecting symmetrically from each of its shorter sides. The frame shown has end recesses 9 for prising and external road-keying recesses forming thin walls connecting full thickness corner portions 10.
Patent GB-1091244-A (GB)
Title: Improvements in or relating to circular knitting machines
Inventor: KERTZCHER CLAUS
IPC: D04B15/61
Filed: 1964-12-03
Abstract: 1,091,244. Knitting-machines. WIRKMASCHINENBAU KARL-MARX-STADT, VEB. Dec. 3, 1964, No. 49209/64. Heading DIC. A two feed circular knitting machine has a thread separating plate 8 which vertically separates the threads from two feeding stations and a single thread suction pipe 2 to remove the thread ends which is situated behind the second working station in the direction of rotation of the needle cylinder. Threads from one feed pass over the plate 8 and threads from the other feed below it, both being held by spring clamps. The suction pipe 2 has apertures above and below the plate 8. A thread severing device is provided.
Patent GB-1237270-A (GB)
Title: Improvements in or relating to socket or outlet pipe connector devices
Inventor: ERIKSEN WALTER
IPC: E04F19/08
Filed: 1968-10-18
Abstract: 1,237,270 Pipe connections. PLATEGODS A.S. 18 Oct., 1968, No. 49430/68. Heading F2G] A socket or pipe connector 6 is mounted on a unit 5, which is pivoted on arms 2 to a cover 3 extending across a floor cavity 1 so that the connector, which is connected to a cable or pipe below the floor by a flexible cable 4, may be pivoted through an opening 13 in the cover 3 from a stowed position in the cavity to an operational position to permit the insertion of a plug or pipe connector 7. The unit 5 is locked in the extended operational position by a spring- loaded plate 8, which engages sawtooth cut-outs 15, Fig. 1 (not shown), in the wall panels of the unit and prevents engagement of the socket 6 by the plug 7 until the socket is locked in the operational position. The plate 8 also prevents stowing of the unit 5 until the plug 7 is disconnected. The plate 8 acts as a closure for the opening 13 in the cover.
Patent GB-1391980-A (GB)
Title: Electrophotographic reproduction apparatus
IPC: G03G15/22
Filed: 1972-10-26
Abstract: 1391980 Electrostatic printing machines OCE-VAN DER GRINTEN NV 26 Oct 1972 [26 Oct 1971] 49495/72 Heading G2H In an electrostatic printing machine in which the photo-conductive member is in the form of an endless band 1 lateral drifting of the band as it moves through the machine is prevented by causing it to pass over a surface moving at a different speed. In the embodiment a hairy fixed surface 25, Fig.3, is employed having end guiding flanges 26, 27. The band 1 is pressed against the hairy surface 25 by a guide roller 21. Instead of the surface or in addition thereto spring loaded flexible bands 28 may be used.
Patent GB-1280368-A (GB)
Title: Process for the production of methyl isobutyl ketone
Inventor: IMAI TORAJIRO
IPC: B01J23/44
Filed: 1969-10-08
Abstract: 1280368 Hydrogenation catalysts SHOWA DENKO KK 8 Oct 1969 49540/69 Heading B1E [Also in Divisions C2 and C3] A catalyst for the production of methyl isobutyl ketone by the hydrogenation of liquid acetone is prepared by impregnating a sulphonic acid cation exchange resin of macroreticular structure with a solution of a palladium salt and then reducing the latter to particles of the metal using hydrazine, hydrazine hydrate, or a salt of hydrazine.
Patent GB-1167854-A (GB)
Title: Loading Bags or Sachets into a Carton.
Inventor: KEILY JOHN ARTHUR
IPC: B65B39/00
Filed: 1966-11-09
Abstract: 1,167,854. Packaging machines; orientation of packages, e.g. tea bags. MARDON, SON & HALL Ltd. 24 Jan., 1968 [9 Nov., 1966], No. 50105/66. Headings B8C and B8S. Packages of flowable material, i.e. tea bags and like sachets which tend to become thicker towards one end than the other, are fed into cartons alternately from opposite directions so that they stack with the ends of alternate packages reversed. The sachets 13 are tipped in pairs from a conveyer 20 into a funnel 19, leading to twin passages 25, 26 down which, the sachets fall, dependent on the position of a flap 28. This flap is operated by sensors 40 and 41 which count the pairs falling down the respective passage, and cause an actuator to switch the flap over after each pair has passed. After a certain number of movements of the flap a cumulative signal from the sensors activates a solenoid 37 to lift a stop 36 to release the full carton 11 and permit infeed by a continuously moving conveyer 10, of an empty carton. Air jets from pipes 33 and 34 blow on to the sachets to keep them settled in the carton. Air jets could replace the flap 28.
Patent GB-1093190-A (GB)
Title: Diaphragm pumps
IPC: F02M1/00
Filed: 1966-11-10
Abstract: 1, 093,190. Diaphragm pumps. GENERAL MOTORS CORPORATION. Nov. 10, 1966 [Nov. 26, 1965], No. 50434/66. Heading F1A. The actuating spring 52 of a diaphragm fuel pump is enclosed in a chamber 32 formed by the diaphragm 26, a sealing diaphragm 48 secured to the actuating rod 24, and the housing 20. The rod 24 is slidable in a rigid member 42 and the chamber 46 is rented to the opening 40. A boss 34 may be provided and may be plugged or connected to a pressure switch 38 to give indication of rupture of the diaphragm 26.
Patent GB-1129707-A (GB)
Title: The deposition of tungsten on semi-conductor material
Inventor: BAYNTON PETER LEWIS
IPC: H01L23/485
Filed: 1966-11-10
Abstract: 1,129,707. Depositing tungsten on semi-conductors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 16, 1967 [Nov. 10, 1966], No.50463/66. Heading C7F. . In a process of depositing W on selected parts of a semi-conductor such as Si, Ge or gallium arsenide, the semi-conductor, except for the selected parts is covered with a layer of Si O 2  approximately 1 micron thick, the selected parts are then covered with a thinner layer of Si O 2 , e.g. not exceeding 100 angstroms, which layer is then removed by etching and W is then deposited on the etched areas by passing WF 6  over the semi-conductor heated to 200‹-500‹ C. In an example a Si substrate is oxidised to form a Si O 2  layer 1 micron thick which is then except for selected areas covered with a photo-resist. The Si O 2  is etched from the selected areas which are then oxidised with a solution of ethyl alcohol and nitric acid. After washing, the new oxide layer is removed by etching in 10% HF for 15 secs., W is then deposited on the selected areas from a gas mixture of argon and WF 6 . .
Patent GB-1440303-A (GB)
Title: Step actuated noisemakers
IPC: A63H5/00
Filed: 1974-11-25
Abstract: 1440303 Noisemakers MEGO CORP 25 Nov 1974 [7 Dec 1973] 50966/74 Heading G5J A step actuated noisemaker comprises a spring cricket 82 in an enclosure formed by housing members 14, 16 connected by an integral hinge 18, the cricket being actuated by a button 58 pushed against the ground. Rubber bands 106 passing through holes in a plate 94 on the upper part of a shoe and through holes in ears on the housing beneath the shoe secure the noisemaker to the shoe.
Patent GB-1124326-A (GB)
Title: Device for illustrating the position of the earth in relation to the sun during the solar year
IPC: G04B19/22
Filed: 1965-12-01
Abstract: 1,124,326. Educational appliances. C. E. FISK. 1 Dec., 1965 [2 June, 19651, No. 51004/65. Heading G5G. A device for illustrating the position of the earth relative to the sun during the year comprises a globe corresponding to the earth, a member corresponding to the sun, and a main base, the globe being carried by a rotatable arm pivotally mounted on the main base and having its own base which is removably interlocked with a globe-supporting platform which is independently rotatably mounted on the arm, the globe being supported on the platform at an axial tilt corresponding to that of the earth. The platform has a selected point which can be kept on a line at a predetermined angle to a datum line on the main base outside the area bounded by the projection on the main base of the globe orbit. As illustrated, the device comprises a base 10, a sphere 45 representing the sun, a globe 60 representing the earth, a platform 70 supporting the globe, and an arm 22 which is movable relative to the base and which carries the platform 70 rotatably mounted thereon. The arm is rotated until pointer 20 reaches a specific date indicated on the base (Fig. 1, not shown), and the platform is adjusted until pointer 81 is pointing in a direction normal to the edge 16 (datum line) of the base. An arch 56 separates the areas of the earth which would be in daylight and darkness. The globe also carries pins 68 located at 15 degree intervals on a circle of latitude, which coact with a substantially resilient tab 69. The period of daylight of a particular location will be indicated by rotating the globe about its axis 61 so that that location is taken from a position adjacent one leg of the arch to a position adjacent the other leg, and by counting the number of engagements of the tab with the pins. The sphere 45 may be adjusted vertically, and a rod 47 represents the sun's rays.
Patent GB-1069138-A (GB)
Title: Improvements relating to profile copying methods
Inventor: POCHON JOHN JOSEPH FINBAR
IPC: B23F19/00
Filed: 1964-12-16
Abstract: 1,069,138. Gear - cutting. CHARLES CHURCHILL & CO. Ltd. Feb. 23, 1966 [Dec. 16, 1964], No. 51285/64. Headings B3B and B3K. A template used to impart crowning motion to a hob in a gear-hobbing machine comprises a longitudinal segment of a solid cylindrical body. The template is mounted in the machine so as to be adjustable from a datum position in which its axis is parallel to the path of travel of a copying stylus and in which position the stylus would merely follow a straight path up the surface of the template, to a predetermined position in which its axis is oriented at a slight angle to the direction of travel of the stylus which thereby is made to follow a curved or part elliptical path on the curved surface of the template.